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Carr BR, Thomas MA, Gangestad A, Eisenberg DL, Olariu A, Creinin MD. Conception rates in women desiring pregnancy after levonorgestrel 52 mg intrauterine system (Liletta®) discontinuation. Contraception 2020; 103:26-31. [PMID: 33038303 DOI: 10.1016/j.contraception.2020.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/17/2020] [Accepted: 09/23/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Evaluate reproductive function in nulligravid and gravid women after levonorgestrel 52 mg intrauterine system (IUS) discontinuation based on time to pregnancy. STUDY DESIGN We evaluated women participating in the ACCESS IUS multicenter, Phase 3, open-label clinical trial of the Liletta(®) levonorgestrel 52 mg IUS who discontinued the IUS within 60 months of use and desired pregnancy. Study staff contacted participants every three months after IUS discontinuation for up to 12 months to determine whether pregnancy occurred. We excluded women who opted to stop attempting to conceive before 12 months. We evaluated 12-month conception rates in participants 16-35 years at IUS placement, comparing dichotomous outcomes using Fisher's exact test. We performed a multivariable analysis to assess the association of baseline characteristics, age at discontinuation, duration of IUS use, and positive sexually transmitted infection testing during IUS use with conception. RESULTS Among 165 women who attempted to conceive, 142 (86.1%) did so within 12 months with a median time to conception of 92 days. The 12-month conception rates did not differ between nulligravid (66/76 [86.8%]) and gravid (76/89 [85.4%]) women (p = 0.83) and nulliparous (78/90 [86.7%]) and parous (64/75 [85.3%]) women (p = 0.83). In multivariable analysis, only obesity (aOR 0.3 [95% CI 0.1-0.8]) was associated with ability to conceive. CONCLUSIONS After levonorgestrel 52 mg IUS discontinuation, women have rapid return of fertility in the year post-removal. Fertility rates after IUS removal do not vary based on gravidity, parity, age at discontinuation, or duration of IUS use. IMPLICATIONS This contemporary IUS study included a large population of nulligravid and nulliparous women. IUS use over many years does not effect spontaneous fertility after IUS discontinuation, regardless of gravidity or parity. Providers and patients should have no concern about the impact of IUS use on future fertility.
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Affiliation(s)
- Bruce R Carr
- Department of Obstetrics and Gynecology, University of Texas Southwestern, Dallas, TX, USA
| | - Michael A Thomas
- Department of Obstetrics and Gynecology, University of Cincinnati, Cincinnati, OH, USA
| | - Angelina Gangestad
- Department of Reproductive Biology, Case Western Reserve University, Cleveland, OH, USA
| | - David L Eisenberg
- Department of Obstetrics and Gynecology, Washington University in St. Louis, St. Louis, MO, USA
| | | | - Mitchell D Creinin
- Department of Obstetrics and Gynecology, University of California, Davis, Sacramento, CA, USA.
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Pennell PB, French JA, Harden CL, Davis A, Bagiella E, Andreopoulos E, Lau C, Llewellyn N, Barnard S, Allien S. Fertility and Birth Outcomes in Women With Epilepsy Seeking Pregnancy. JAMA Neurol 2019; 75:962-969. [PMID: 29710218 DOI: 10.1001/jamaneurol.2018.0646] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Importance Prior studies report lower birth rates for women with epilepsy (WWE) but have been unable to differentiate between biological and social contributions. To our knowledge, we do not have data to inform WWE seeking pregnancy if their likelihood of achieving pregnancy is biologically reduced compared with their peers. Objective To determine if WWE without a prior diagnosis of infertility or related disorders are as likely to achieve pregnancy within 12 months as their peers without epilepsy. Design, Setting, and Participants The Women With Epilepsy: Pregnancy Outcomes and Deliveries study is an observational cohort study comparing fertility in WWE with fertility in control women (CW) without epilepsy. Participants were enrolled at 4 academic medical centers and observed up to 21 months from November 2010 to May 2015. Women seeking pregnancy aged 18 to 40 years were enrolled within 6 months of discontinuing contraception. Exclusion criteria included tobacco use and a prior diagnosis of infertility or disorders that lower fertility. Eighteen WWE and 47 CW declined the study, and 40 WWE and 170 CW did not meet study criteria. The Women With Epilepsy: Pregnancy Outcomes and Deliveries electronic diary app was used to capture data on medications, seizures, sexual activity, and menses. Data were analyzed from November 2015 to June 2017. Main Outcomes and Measures The primary outcome was proportion of women who achieved pregnancy within 12 months after enrollment. Secondary outcomes were time to pregnancy using a proportional hazard model, pregnancy outcomes, sexual activity, ovulatory rates, and analysis of epilepsy factors in WWE. All outcomes were planned prior to data collection except for time to pregnancy. Results Of the 197 women included in the study, 142 (72.1%) were white, and the mean (SD) age was 31.9 (3.5) years among the 89 WWE and 31.1 (4.2) among the 108 CW. Among 89 WWE, 54 (60.7%) achieved pregnancy vs 65 (60.2%) among 108 CW. Median time to pregnancy was no different between the groups after controlling for key covariates (WWE: median, 6.0 months; 95% CI, 3.8-10.1; CW: median, 9.0 months; 95% CI, 6.5-11.2; P = .30). Sexual activity and ovulatory rates were similar in WWE and CW. Forty-four of 54 pregnancies (81.5%) in WWE and 53 of 65 pregnancies (81.5%) in CW resulted in live births. No epilepsy factors were significant. Conclusions and Relevance Women with epilepsy seeking pregnancy without prior known infertility or related disorders have similar likelihood of achieving pregnancy, time to pregnancy, and live birth rates compared with their peers without epilepsy.
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Affiliation(s)
- Page B Pennell
- Division of Epilepsy, Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Division of Women's Health, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jacqueline A French
- Department of Neurology, New York University Comprehensive Epilepsy Center, New York
| | - Cynthia L Harden
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Anne Davis
- Department of Obstetrics and Gynecology, Columbia University Irving Medical Center, New York, New York
| | - Emilia Bagiella
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Evie Andreopoulos
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Connie Lau
- Department of Neurology, Northwell Health, Great Neck, New York
| | - Nichelle Llewellyn
- Allegheny Health Network Research Institute, Allegheny Health Network, Pittsburgh, Pennsylvania.,Division of Epilepsy, Department of Neurology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Sarah Barnard
- Department of Neurology, New York University Comprehensive Epilepsy Center, New York
| | - Stephanie Allien
- Division of Epilepsy, Department of Neurology, Brigham and Women's Hospital, Boston, Massachusetts
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Girum T, Wasie A. Return of fertility after discontinuation of contraception: a systematic review and meta-analysis. Contracept Reprod Med 2018; 3:9. [PMID: 30062044 PMCID: PMC6055351 DOI: 10.1186/s40834-018-0064-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 05/02/2018] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Along with increasing availability and utilization of contraception, It is also important to confirm that the effects of contraception use on resumption of fertility after discontinuation However currently evidences on resumption of fertility after contraception use are inconclusive and practically fertility after termination of contraception remains a big concern for women who are using contraception. This fear poses a negative impact on utilization and continuation of contraception. Therefore, Estimating the rate of pregnancy resumption after contraceptive use from the available reports and identifying the associating factors are important for designing a strategy to overcome the problem. METHODS The review was conducted through a systematic literature search of articles published between 1985 and 2017. Five bibliographic databases and libraries: PubMed/Medline, Global Health Database, Embase, the Cochrane Library, and African Index Medicus were used. After cleaning and sorting, analysis was performed using STATA version 11. The pooled rate of conception was estimated with a random-effects model. Heterogeneity was assessed by the I2 and publication bias through funnel plot. RESULTS Twenty two studies that enrolled a total of 14,884 women who discontinued contraception were retained for final analysis. The pooled rate of pregnancy was 83.1% (95% CI = 78.2-88%) within the first 12 months of contraceptive discontinuation. It was not significantly different for hormonal methods and IUD users. Similarly the type of progesterone in specific contraception option and duration of oral-contraceptive use do not significantly influence the return of fertility following cessation of contraception. However the effect of parity in the resumption of pregnancy following cessation of contraception was inconclusive. CONCLUSION AND RECOMMENDATION Contraceptive use regardless of its duration and type does not have a negative effect on the ability of women to conceive following termination of use and it doesn't significantly delay fertility. Therefore, appropriate counseling is important to assure the women to use the methods as to their interest.
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Affiliation(s)
- Tadele Girum
- Department of Public Health, College of Medicine and Health Sciences, Wolkite University, Wolkite City, Ethiopia
| | - Abebaw Wasie
- Department of Public Health, College of Medicine and Health Sciences, Wolkite University, Wolkite City, Ethiopia
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Eisenberg DL, Schreiber CA, Turok DK, Teal SB, Westhoff CL, Creinin MD. Three-year efficacy and safety of a new 52-mg levonorgestrel-releasing intrauterine system. Contraception 2015; 92:10-6. [DOI: 10.1016/j.contraception.2015.04.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 04/15/2015] [Accepted: 04/17/2015] [Indexed: 12/30/2022]
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Depressive symptomatology and quality of life assessment among women using the levonorgestrel-releasing intrauterine system: an observational study. Arch Gynecol Obstet 2014; 290:507-11. [DOI: 10.1007/s00404-014-3237-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Accepted: 03/28/2014] [Indexed: 10/25/2022]
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Luukkainen T, Pakarinen P. Medicated intrauterine devices for contraception and their therapeutic effects. ACTA ACUST UNITED AC 2014. [DOI: 10.1586/17474108.1.2.195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mansour D, Gemzell-Danielsson K, Inki P, Jensen JT. Fertility after discontinuation of contraception: a comprehensive review of the literature. Contraception 2011; 84:465-77. [DOI: 10.1016/j.contraception.2011.04.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 03/29/2011] [Accepted: 04/08/2011] [Indexed: 12/01/2022]
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The benefits and risks of using a levonorgestrel-releasing intrauterine system for contraception. Contraception 2011; 85:224-34. [PMID: 22067761 DOI: 10.1016/j.contraception.2011.08.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 08/05/2011] [Accepted: 08/05/2011] [Indexed: 11/24/2022]
Abstract
The contraceptive profile of the levonorgestrel-releasing intrauterine system (LNG-IUS; Mirena®) is well established, with efficacy similar to that achieved with sterilization and rapid return to fertility after discontinuation of use. The LNG-IUS is typically associated with transient menstrual disturbance during the first few months of use, but this usually settles with continued use, with a concomitant decrease in menstrual blood loss. Overall, the safety profile of the LNG-IUS has been well established across a wide population of women, and the available data do not suggest that the LNG-IUS adversely affects bone health or increase the risk of adverse cardiovascular events or breast and uterine cancers. This article reviews the literature to provide updated information on the risks and benefits associated with the LNG-IUS, particularly focusing on its use in contraception.
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Endrikat J, Vilos G, Muysers C, Fortier M, Solomayer E, Lukkari-Lax E. The levonorgestrel-releasing intrauterine system provides a reliable, long-term treatment option for women with idiopathic menorrhagia. Arch Gynecol Obstet 2011; 285:117-21. [PMID: 21475963 DOI: 10.1007/s00404-011-1902-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Accepted: 03/24/2011] [Indexed: 11/27/2022]
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Bastianelli C, Farris M, Benagiano G. Use of the levonorgestrel-releasing intrauterine system, quality of life and sexuality. Experience in an Italian family planning center. Contraception 2011; 84:402-8. [PMID: 21920196 DOI: 10.1016/j.contraception.2011.01.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 12/02/2010] [Accepted: 01/26/2011] [Indexed: 10/18/2022]
Abstract
BACKGROUND The levonorgestrel-releasing intrauterine system (LNG-IUS) was first marketed in 1990 in Finland. Since then, it has been approved in approximately 120 countries throughout the world, with almost 50 million women-years of cumulative experience to date. Its high contraceptive effectiveness and favorable bleeding profile, leading to significant reduction of menstrual bleeding both in women with idiopathic menorrhagia and in those with normal menstrual bleedings, have been the key to the success of the system. At the same time, women need to be provided adequate preinsertion counseling about changes in menstrual bleeding to be expected. In the Italian context, it is important to highlight during counseling that amenorrhea is not harmful but can lead to health benefits such as an increase in iron blood stores and blood hemoglobin concentration. STUDY DESIGN To evaluate contraceptive efficacy, compliance and the effect of changes in menstrual cyclicity on quality of life and sexuality of the LNG-IUS (Mirena®), 156 women attending the Family Planning Clinic to request contraception were enrolled in the study and inserted with the device. RESULTS Menstrual blood flow decreased in all users, in terms of both quantity and duration; although spotting was present in 93.7% of the women, it disappeared within 6 months in the majority of cases. Amenorrhea occurred in 29.5% of all women, with onset within the first six cycles postinsertion. Data from the EuroQuality of Life-5D and Female Sexual Function Index questionnaires showed improvement in the quality of life, with a decrease in intercourse-related pain and an improvement in sexual desire. CONCLUSIONS Although in Italy intrauterine contraception is poorly accepted, once started on LNG-IUS, women found that the device represents a safe and effective contraceptive modality, with valuable noncontraceptive benefits, especially in the presence of heavy or prolonged bleeding.
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Affiliation(s)
- Carlo Bastianelli
- Department of Obstetrics and Gynecology, Sapienza University of Rome, Rome, Italy.
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Lucereau-Barbier M, Graesslin O. Contraception et fertilité ultérieure. Contraception 2011. [DOI: 10.1016/b978-2-294-70921-0.00015-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Bednarek PH, Jensen JT. Safety, efficacy and patient acceptability of the contraceptive and non-contraceptive uses of the LNG-IUS. Int J Womens Health 2010; 1:45-58. [PMID: 21072274 PMCID: PMC2971715 DOI: 10.2147/ijwh.s4350] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2009] [Indexed: 11/23/2022] Open
Abstract
Intrauterine devices (IUDs) provide highly effective, long-term, safe, reversible contraception, and are the most widely used reversible contraceptive method worldwide. The levonorgestrel-releasing intrauterine system (LNG-IUS) is a T-shaped IUD with a steroid reservoir containing 52 mg of levonorgestrel that is released at an initial rate of 20 μg daily. It is highly effective, with a typical-use first year pregnancy rate of 0.1% - similar to surgical tubal occlusion. It is approved for 5 years of contraceptive use, and there is evidence that it can be effective for up to 7 years of continuous use. After removal, there is rapid return to fertility, with 1-year life-table pregnancy rates of 89 per 100 for women less than 30 years of age. Most users experience a dramatic reduction in menstrual bleeding, and about 15% to 20% of women become amenorrheic 1 year after insertion. The device's strong local effects on the endometrium benefit women with various benign gynecological conditions such as menorrhagia, dysmenorrhea, leiomyomata, adenomyosis, and endometriosis. There is also evidence to support its role in endometrial protection during postmenopausal estrogen replacement therapy, and in the treatment of endometrial hyperplasia.
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Affiliation(s)
- Paula H Bednarek
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR, USA
| | - Jeffrey T Jensen
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR, USA
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Römer T, Linsberger D. User satisfaction with a levonorgestrel-releasing intrauterine system (LNG-IUS): data from an international survey. EUR J CONTRACEP REPR 2010; 14:391-8. [PMID: 19929641 DOI: 10.3109/13625180903203154] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To identify the characteristics of an international population of women using the levonorgestrel-releasing intrauterine system (LNG-IUS) and their experiences with this contraceptive. METHODS Women who had used the LNG-IUS for six months or more completed a standardised questionnaire on reasons for use, user satisfaction and other aspects. RESULTS A total of 8680 questionnaires were completed by survey participants in 18 countries across Europe and the Near East. The average woman using the LNG-IUS was 38 years old, was married or lived with her partner, and had two children. Overall, 95% of patients were satisfied with the LNG-IUS; the percentage rose to 99% among those using their second LNG-IUS. Reasons mentioned for using the LNG-IUS included the need for contraception (68%), its high efficacy (59%) and the shorter/lighter menstrual bleeding (55%). Of the women with prior bleeding problems, 93% reported an improvement in their symptoms with the LNG-IUS. Participants also rated the reliability, tolerability and convenience of the method highly. CONCLUSIONS This survey provides insight into the profiles of LNG-IUS users. High levels of satisfaction with this method of contraception were reported by both first and second-time users. Our data suggest that the LNG-IUS is well accepted and that it provides considerable benefits beyond contraception alone.
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Affiliation(s)
- Thomas Römer
- Evangelisches Krankenhaus Köln-Weyertal GmbH, Köln, Germany.
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Lu Y, Nie J, Liu X, Guo SW. Reduced expression and concomitant promoter hypermethylation of HOXA10 in endometrium from women wearing intrauterine devices. Fertil Steril 2009; 94:1583-8. [PMID: 19880107 DOI: 10.1016/j.fertnstert.2009.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Revised: 09/07/2009] [Accepted: 09/10/2009] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To determine whether prolonged intrauterine device (IUD) usage is associated with decreased HOXA10 expression and increased methylation in the endometrium. DESIGN Observational study. PATIENT(S) Women wearing IUDs and not wearing IUDs. INTERVENTION(S) Immunohistochemistry of HOXA10 and methylation-specific PCR. MAIN OUTCOME MEASURE(S) Endometrial HOXA10 expression levels and methylation frequency. RESULT(S) The IUD usage was associated with decreased endometrial HOXA10 expression, concordant with higher frequency of HOXA10 promoter hypermethylation. The HOXA10 hypermethylation was associated with the duration of IUD usage, irrespective age, gravidity, parity, and IUD type. CONCLUSION(S) Prolonged IUD use may induce endometrial HOXA10 hypermethylation and reduced expression. These results suggest a possible novel mode of action for IUD, a possibility to rectify the aberrant methylation through pharmacologic means, and a possible noninvasive way for detection of aberrant methylation at HOXA10.
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Affiliation(s)
- Yuan Lu
- Department of Gynecology, Shanghai OB/GYN Hospital, Shanghai Medical School, Fudan University, Shanghai, People's Republic of China
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Endrikat J, Shapiro H, Lukkari-Lax E, Kunz M, Schmidt W, Fortier M. A Canadian, multicentre study comparing the efficacy of a levonorgestrel-releasing intrauterine system to an oral contraceptive in women with idiopathic menorrhagia. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2009; 31:340-347. [PMID: 19497153 DOI: 10.1016/s1701-2163(16)34151-2] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To evaluate the efficacy of a levonorgestrel-releasing intrauterine system (LNG-IUS) compared with a combined oral contraceptive containing 1 mg norethindrone acetate and 20 mg ethinyl estradiol (OC1/20) in reducing menstrual blood loss (MBL) in women with idiopathic menorrhagia. METHODS A prospective, randomized, open-label study was conducted in nine centres in Canada. Healthy women over 30 years of age suffering from idiopathic menorrhagia were treated either with LNG-IUS (n = 20) or with OC1/20 (n = 19) over 12 months. The primary endpoint was the change in MBL from baseline to 12 months. Secondary endpoints included treatment success (defined as a MBL score < 100 after 12 months), hemoglobin levels, and the menorrhagia severity score. RESULTS In both treatment groups, MBL decreased significantly from baseline to 12 months (P < 0.001). For the primary endpoint, the MBL score decreased significantly more in the LNG-IUS group (median from 228 to 13, mean percent change-83%) compared to the OC1/20 group (median from 290 to 72; mean percent change-68%) (P = 0.002) after 12 months. In the LNG-IUS group, 80% of subjects had treatment success compared with 36.8 % in the OC1/20 group (P < 0.009). Both treatments increased hemoglobin concentrations significantly between baseline and 12 months. The menorrhagia severity score was consistently lower in the LNG-IUS group at all study time points and was significantly lower (P = 0.045) at six months. Both treatments were well tolerated. CONCLUSION Both the LNG-IUS and the combined oral contraceptive effectively decreased menstrual blood loss in women with idiopathic menorrhagia. The overall clinical benefit was more pronounced with LNG-IUS than with OC1/20.
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Affiliation(s)
- Jan Endrikat
- Bayer Inc., Toronto ON; Universitätskliniken des Saarlandes, Frauenklinik, Germany
| | | | | | | | - Werner Schmidt
- Universitätskliniken des Saarlandes, Frauenklinik, Germany
| | - Michel Fortier
- Clinique de Recherche en Santé des Femmes, Obstetrics and Gynecology, Quebec City QC
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Güney M, Oral B, Karahan N, Mungan T. Expression of leukaemia inhibitory factor (LIF) during the window of implantation in copper T380A intrauterine device users. EUR J CONTRACEP REPR 2009; 12:212-9. [PMID: 17763259 DOI: 10.1080/13625180701441261] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The mechanism of action of intrauterine devices (IUDs) is not well understood. This investigation was intended to gain further insight into the role of leukaemia inhibitory factor (LIF) in intrauterine contraception. We evaluated the immunohistochemical distribution patterns of LIF in women wearing a copper T380A IUD. METHODS The immunohistochemical distribution patterns of LIF in women who had been using a copper T380A IUD for different periods of time, two months after removal of the IUD, and in normal fertile women were evaluated. Endometrial biopsies were obtained from four groups of patients according to the duration of T Cu380A IUD use (group I: <5 years, n = 15, and group II: > or = 5 years, n = 15), after IUD removal (group III, n = 15) and normal fertile women (controls, n = 15) during the window of implantation (WOI). Staining intensity of LIF was evaluated using semi-quantitative IRS-scores. RESULTS The lowest expression of LIF was observed in women using a copper T380A IUD, being statistically significant compared with the control group (p < 0.05). LIF immunostaining remained abnormal two months after IUD removal. CONCLUSIONS Copper IUDs can inhibit expression of LIF and they may cause inhibition of the implantation stage, which is crucial for pregnancy.
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Affiliation(s)
- Mehmet Güney
- Department of Obstetrics and Gynaecology, Süleyman Demirel University, Isparta, Turkey.
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Kaunitz AM, Meredith S, Inki P, Kubba A, Sanchez-Ramos L. Levonorgestrel-releasing intrauterine system and endometrial ablation in heavy menstrual bleeding: a systematic review and meta-analysis. Obstet Gynecol 2009; 113:1104-1116. [PMID: 19384127 DOI: 10.1097/aog.0b013e3181a1d3ce] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To compare the effects of the levonorgestrel intrauterine system and endometrial ablation in reducing heavy menstrual bleeding. DATA SOURCES Medline and EMBASE were searched online using Ovid up to January 2009, as well as the reference lists of published articles, to identify randomized controlled trials comparing the levonorgestrel intrauterine system with endometrial ablation in the treatment of heavy menstrual bleeding. METHODS OF STUDY SELECTION This systematic review and meta-analysis was restricted to randomized controlled trials in which menstrual blood loss was reported using pictorial blood loss assessment chart scores. TABULATION, INTEGRATION, AND RESULTS Six randomized controlled trials that included 390 women (levonorgestrel intrauterine system, n=196; endometrial ablation, n=194) were retrieved. Three studies pertained to first-generation endometrial ablation (manual hysteroscopy) and three to second-generation endometrial ablation (thermal balloon). Study characteristics and quality were recorded for each study. Data on the effect of treatment on pictorial blood loss assessment chart scores were abstracted, integrated with meta-analysis techniques, and presented as weighted mean differences. Both treatment modalities were associated with similar reductions in menstrual blood loss after 6 months (weighted mean difference, -31.96 pictorial blood loss assessment chart score [95% confidence interval (CI), -65.96 to 2.04]), 12 months (weighted mean difference, 7.45 pictorial blood loss assessment chart score [95% CI, -12.37 to 27.26]), and 24 months (weighted mean difference, -26.70 pictorial blood loss assessment chart score [95% CI, -78.54 to 25.15]). In addition, both treatments were generally associated with similar improvements in quality of life in five studies that reported this as an outcome. No major complications occurred with either treatment modality in these small trials. CONCLUSION Based on the meta-analysis of six randomized clinical trials, the efficacy of the levonorgestrel intrauterine system in the management of heavy menstrual bleeding appears to have similar therapeutic effects to that of endometrial ablation up to 2 years after treatment.
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Affiliation(s)
- Andrew M Kaunitz
- From the Department of Obstetrics and Gynecology, University of Florida College of Medicine-Jacksonville, Florida; Bayer Schering Pharma AG, Berlin, Germany; and Department of Obstetrics and Gynaecology, Guys, Kings & St Thomas' School of Medicine, London, United Kingdom
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Intrauterine contraception as an alternative to interval tubal sterilization. Contraception 2008; 77:6-9. [DOI: 10.1016/j.contraception.2007.09.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2007] [Revised: 09/12/2007] [Accepted: 09/12/2007] [Indexed: 11/24/2022]
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The Levonorgestrel-releasing Intrauterine System: An Updated Review of the Contraceptive and Noncontraceptive Uses. Clin Obstet Gynecol 2007; 50:886-97. [DOI: 10.1097/grf.0b013e318159c0d9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Hov GG, Skjeldestad FE, Hilstad T. Use of IUD and subsequent fertility — follow-up after participation in a randomized clinical trial. Contraception 2007; 75:88-92. [PMID: 17241835 DOI: 10.1016/j.contraception.2006.09.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2006] [Revised: 08/23/2006] [Accepted: 09/14/2006] [Indexed: 10/23/2022]
Abstract
PURPOSE Although the IUD has been a contraceptive method for about 50 years, how it affects subsequent fertility remains controversial. The aim of our study was to examine time to pregnancy, pregnancy outcome and the need for infertility workup in a cohort of previous copper IUD users. MATERIALS AND METHODS From May 1993 to April 1995, 957 women were included in a prospective cohort IUD study in the city of Trondheim, Norway. From this randomized clinical trial, we identified 205 women eligible for study participation. Group A comprised 109 women who removed their IUD for purposes of planning to become pregnant, while Group B comprised 96 women who became pregnant or planned pregnancy after a complicated IUD use. Data were collected through a postal questionnaire. All information from the questionnaires was validated against data kept in the medical record at the general practitioner's office or in the hospital record of women who became pregnant or started an infertility workup. All analyses were done using SPSS. RESULTS In Group A, 93.6% (102/109) of the women became pregnant. Time to conception was unaffected by parity order, duration of use and age at time for removal of the IUD. Among the seven women who did not conceive, four women cancelled pregnancy plans, while three women started an infertility workup. The distribution of intra-/extrauterine pregnancies did not differ between Groups A and B. However, significantly more pregnancies were terminated as induced abortions in Group B. The two women (2%) who did not conceive in Group B did not start an infertility workup. CONCLUSION In line with results from other studies, there is no evidence that prior use of a copper-containing IUD increases the risk for impaired fertility regardless of the reason for removal.
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Affiliation(s)
- Gunhild Garmo Hov
- Department of Epidemiology, SINTEF Health Research and Institute of Laboratory Medicine, Children's and Women's Health, Norwegian University of Technology and Science, N-7465 Trondheim, Norway
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22
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Jensen JT. Contraceptive and Therapeutic Effects of the Levonorgestrel Intrauterine System: An Overview. Obstet Gynecol Surv 2005; 60:604-12. [PMID: 16121115 DOI: 10.1097/01.ogx.0000175805.90122.af] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
UNLABELLED The levonorgestrel intrauterine system (LNG IUS), a steroid-releasing intrauterine system, is a T-shaped device that releases levonorgestrel directly into the uterine cavity at an initial rate of 20 mug per day. The contraceptive and therapeutic benefits of the LNG IUS stem primarily from its local effects. The local hormone delivery causes high levonorgestrel levels in the endometrial tissue but low levels in the systemic circulation. This leads to strong endometrial suppression and, in many cases, a dramatic reduction in menstrual blood loss. The high contraceptive efficacy is well documented through extensive international clinical research. This review article provides an overview of the LNG IUS and addresses the following topics: mechanisms of action, contraceptive efficacy, changes in bleeding patterns, principal safety issues, potential noncontraceptive benefits, and implications for women's reproductive health. TARGET AUDIENCE Obstetricians & Gynecologists, Family Physicians. LEARNING OBJECTIVES After completion of this article, the reader should be able to explain that the levonorgestrel intrauterine system (LNG IUS) has contraceptive and therapeutic benefits, identify the main site of action as the endometrium, and to recall that the safety of the system has been validated over time.
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Affiliation(s)
- Jeffrey T Jensen
- Department of Obstetrics and Gynecology, UHN-70, Oregon Health & Science University, 3181 Sam Jackson Park Road, Portland, OR 97239, USA.
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23
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Abstract
The levonorgestrel-releasing intrauterine system (IUS) is a long-acting, fully reversible method of contraception. It is one of the most effective forms of contraception available, and combines the advantages of both hormonal and intrauterine contraception. The levonorgestrel-releasing IUS also gives the users many non-contraceptive benefits: the amount of menstrual bleeding and the number of days of menstrual bleeding are reduced, which makes it suitable for the treatment of menorrhagia (heavy menstrual blood loss). Dysmenorrhoea (painful menstruation) and premenstrual symptoms are also relieved. In addition, the levonorgestrel-releasing IUS provides protection for the endometrium during hormone replacement therapy. The local release of levonorgestrel into the uterine cavity results in a strong uniform suppression of the endometrial epithelium as the epithelium becomes insensitive to estradiol released from the ovaries. This accounts for the reduction in menstrual blood loss. All possible patterns of bleeding are seen among users of the levonorgestrel-releasing IUS; however, most of the women who experience total amenorrhoea continue to ovulate. The first months of use are often characterised by irregular, scanty bleeding, which in most cases resolves spontaneously. The menstrual pattern and fertility return to normal soon after the levonorgestrel-releasing IUS is removed. The contraceptive efficacy is high with 5-year failure rates of 0.5-1.1 per 100 users. The absolute number of ectopic pregnancies is low, as is the rate per 1000 users. The levonorgestrel-releasing IUS is equally effective in all age groups and the bodyweight of the user is not associated with failure of the method. In Western cultures continuance rates among users of the levonorgestrel-releasing IUS are comparable with those of other long-term methods of contraception. Premature removal of the device is most often associated with heavy menstrual bleeding and pain, as with other long-term methods of contraception, and is most common in the youngest age group. When adequately counselled about the benign nature of oligo- or amenorrhoea, most women are very willing to accept life without menstruation. The risk of premature removal can be markedly diminished with good pre-insertion counselling, which also markedly increases user satisfaction. User satisfaction is strongly associated with the information given at the time of the levonorgestrel-releasing IUS insertion. Thus, the benefits of the levonorgestrel-releasing IUS make it a very suitable method of contraception for most women.
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Affiliation(s)
- Tiina Backman
- Department of Obstetrics and Gynecology, Turku University Hospital, Turku, Finland.
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24
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French R, Van Vliet H, Cowan F, Mansour D, Morris S, Hughes D, Robinson A, Proctor T, Summerbell C, Logan S, Helmerhorst F, Guillebaud J. Hormonally impregnated intrauterine systems (IUSs) versus other forms of reversible contraceptives as effective methods of preventing pregnancy. Cochrane Database Syst Rev 2004; 2004:CD001776. [PMID: 15266453 PMCID: PMC8407482 DOI: 10.1002/14651858.cd001776.pub2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND In the 1970s a new approach to the delivery of hormonal contraception was researched and developed. It was suggested that the addition of a progestogen to a non-medicated contraceptive device improved its contraceptive action. An advantage of these hormonally impregnated intrauterine systems (IUS) is that they are relatively maintenance free, with users having to consciously discontinue using them to become pregnant rather than taking a proactive daily decision to avoid conception. OBJECTIVES To assess the contraceptive efficacy, tolerability and acceptability of hormonally impregnated intrauterine systems (IUSs) in comparison to other reversible contraceptive methods. SEARCH STRATEGY Literature was identified through database searches, reference lists and individuals/organisations working in the field. Searches covered the period from 1972 to November 2003. SELECTION CRITERIA All randomised controlled trials comparing IUSs with other forms of reversible contraceptives and reporting on pre-determined outcomes in women of reproductive years. The primary outcomes were pregnancy due to method/user failure and continuation rate. DATA COLLECTION AND ANALYSIS The quality assessment of studies and data extraction were completed independently by two blinded reviewers. A quality checklist was designed to identify general methodological and contraceptive specific factors which could bias results. Events per women months and single decrement life table rates were extracted where possible for pregnancy, continuation, adverse events and reasons for discontinuation. Events per total number of women at follow up were collected for hormonal side effects and menstrual disturbance. When appropriate, data were pooled at the same points of follow up to calculate rate ratios in order to determine the relative effectiveness of one method compared to another. For the single decrement life table rates, the rate differences were pooled to determine the absolute difference in effectiveness of one method compared to another. Interventions were only combined if the contraceptive methods were similar. Non-hormonal IUDs were divided into three categories for the purpose of comparison with IUSs: IUDs >250mm2 (i.e. CuT 380A IUD and CuT 380 Ag IUD), IUDs <=250mm2 (i.e. Nova-T, Multiload, CuT 200 and CuT 220 IUDs) and non-medicated IUDs. MAIN RESULTS Twenty-one RCTs comparing hormonally impregnated IUSs to a reversible contraceptive method met the inclusion criteria and it was possible to include eight of these in the meta-analyses, four comparing LNG-20 IUSs with non-hormonal IUDs, one comparing the LNG-20 IUS with Norplant-2 and three comparing Progestasert with non-hormonal IUDs. No significant difference was observed between the pregnancy rates for the LNG-20 users and those for the IUD >250mm2 users. However, women using the LNG-20 IUS were significantly less likely to become pregnant than those using the IUD <=250mm2. Women using the LNG-20 IUS were more likely to experience amenorrhoea and device expulsion than women using IUDs >250mm2. LNG-20 users were significantly more likely than all the IUD users to discontinue because of hormonal side effects and menstrual disturbance, which on further breakdown of the data was due to amenorrhoea. When the LNG-20 IUS was compared to Norplant-2, the LNG-20 users were significantly more likely to experience amenorrhoea and oligomenorrhoea, but significantly less likely to experience prolonged bleeding and spotting. No other significant differences were observed. Progestasert users were significantly less likely to become pregnant and less likely to continue on the method than non-medicated IUD users after one year, but no significant difference was noted for these two outcomes when Progestasert users were compared to IUD<=250mm2 users. The only other significant differences found in the meta-analyses were that Progestasert users were less likely to expel the device and more likely to discontinue the method because of menstrual bleeding and pain than users of IUDs <=250mm2. REVIEWERS' CONCLUSIONl the device and more likely to discontinue the method because of menstrual bleeding and pain than users of IUDs <=250mm2. REVIEWERS' CONCLUSIONS Current evidence suggests LNG-20 IUS users are no more or less likely to have unwanted pregnancies than IUD >250mm2 and Norplant-2 users. The LNG-20 IUS was more effective in preventing either intrauterine or extrauterine pregnancies than IUDs <=250mm2. The contraceptive effectiveness of Progestasert was significantly better than non-medicated IUDs, but no difference was observed when compared to IUDs<=250mm2. Continuation of LNG-20 IUS use was similar to continuation of the non-hormonal IUDs and Norplant-2. Amenorrhoea was the main reason for the discontinuation for the LNG-20 IUS and women should be informed of this prior to starting this method.
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Affiliation(s)
- R French
- Department of STDs, Mortimer Market Centre, University College London Medical School, off Capper Street, London, UK, WC1E 6AU.
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25
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Zalel Y, Shulman A, Lidor A, Achiron R, Mashiach S, Gamzu R. The local progestational effect of the levonorgestrel-releasing intrauterine system: a sonographic and Doppler flow study. Hum Reprod 2002; 17:2878-80. [PMID: 12407042 DOI: 10.1093/humrep/17.11.2878] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND We aimed to evaluate the effect of the levonorgestrel-releasing intrauterine system (LNG-IUS) on the uterine vasculature and the endometrium. METHODS The study was a prospective controlled study evaluating the local effects of LNG-IUS compared with the copper intrauterine device (IUD). Forty-seven women carrying LNG-IUS (group A) were compared with 35 women carrying copper IUD in a control group (group B). Clinical measures of menstrual bleeding, endometrial thickness and Doppler flow of the cervical branch of the uterine artery and spiral artery were evaluated and compared between the two groups. RESULTS Doppler flow in the cervical branch of the uterine artery did not reveal any changes between the groups (resistance index = 0.6 +/- 0.01 in both groups). Endometrial width was significantly thinner in group A (4.1 +/- 0.2 mm) compared with group B (7.3 +/- 0.2 mm) (P < 0.0001). Subendometrial flow in the spiral artery was significantly reduced in 35 women of group A (75%) and in none of group B (P < 0.0001). CONCLUSIONS The present study offers an explanation for the oligomenorrhoea in LNG-IUS users, i.e. a local progestational effect on the endometrium with no change in the blood flow in the uterine artery. This should be presented to the women in the pre-contraceptive counselling in order to lessen the discontinuation rate.
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Affiliation(s)
- Y Zalel
- Department of Obstetrics and Gynecology, the Chaim Sheba Medical Center, (affiliated to the Sackler Faculty of Medicine, Tel-Aviv University), Tel-Hashomer, Israel.
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26
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French R, Cowan F, Mansour D, Morris S, Hughes D, Robinson A, Proctor T, Summerbell C, Logan S, Guillebaud J. Hormonally impregnated intrauterine systems (IUSs), versus other forms of reversible contraceptives as effective methods of preventing pregnancy. Cochrane Database Syst Rev 2001:CD001776. [PMID: 11406007 DOI: 10.1002/14651858.cd001776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVES To assess the contraceptive efficacy, tolerability and acceptability of hormonally impregnated intrauterine systems (IUSs) in comparison to other reversible contraceptive methods. SEARCH STRATEGY Literature was identified through database searches, reference lists and individuals/organisations working in the field. SELECTION CRITERIA All randomised controlled trials comparing IUSs with other forms of reversible contraceptives and reporting on pre-determined outcomes in women of reproductive years. The primary outcomes were pregnancy due to method/user failure and continuation rate. DATA COLLECTION AND ANALYSIS The quality assessment of studies and data extraction were completed independently by two blinded reviewers. A quality checklist was designed to identify general methodological and contraceptive specific factors which could bias results. Events per women months and single decrement life table rates were extracted where possible for pregnancy, continuation, adverse events and reasons for discontinuation. Events per total number of women at follow up were collected for hormonal side effects and menstrual disturbance. When appropriate, data were pooled at the same points of follow up to calculate rate ratios in order to determine the relative effectiveness of one method compared to another. For the single decrement life table rates, the rate differences were pooled to determine the absolute difference in effectiveness of one method compared to another. Interventions were only combined if the contraceptive methods were similar. Non-hormonal IUDs were divided into three categories for the purpose of comparison with IUSs: IUDs >250mm2 (i.e. CuT 380A IUD and CuT 380 Ag IUD), IUDs <=250mm2 (i.e. Nova-T, Multiload, CuT 200 and CuT 220 IUDs) and non-medicated IUDs. MAIN RESULTS Nineteen RCTs comparing hormonally impregnated IUSs to a reversible contraceptive method met the inclusion criteria and it was possible to include eight of these in the meta-analyses, four comparing LNG-20 IUSs with non-hormonal IUDs, one comparing the LNG-20 IUS with Norplant-2 and three comparing Progestasert with non-hormonal IUDs. No significant difference was observed between the pregnancy rates for the LNG-20 users and those for the IUD >250mm2 users. However, women using the LNG-20 IUS were significantly less likely to become pregnant than those using the IUD <=250mm2. Women using the LNG-20 IUS were more likely to experience amenorrhoea and device expulsion than women using IUDs >250mm2. LNG-20 users were significantly more likely than all the IUD users to discontinue because of hormonal side effects and menstrual disturbance, which on further breakdown of the data was due to amenorrhoea. When the LNG-20 IUS was compared to Norplant-2, the LNG-20 users were significantly more likely to experience amenorrhoea and oligomenorrhoea, but significantly less likely to experience prolonged bleeding and spotting. No other significant differences were observed. Progestasert users were significantly less likely to become pregnant and less likely to continue on the method than non-medicated IUD users after one year, but no significant differences was noted for these two outcomes when Progestasert users were compared to IUD<=250mm2 users. The only other significant differences found in the meta-analyses were that Progestasert users were less likely to expel the device and more likely to discontinue the method because of menstrual bleeding and pain than users of IUDs <=250mm2. REVIEWER'S CONCLUSIONS Current evidence suggests LNG-20 IUS users are no more or less likely to have unwanted pregnancies than IUD >250mm2 and Norplant-2 users. The LNG-20 IUS was more effective in preventing either intrauterine or extrauterine pregnancies than IUDs <=250mm2. The contraceptive effectiveness of Progestasert was significantly better than non-medicated IUDs, but no difference was observed when compared to IUDs<=250mm2. Continuation of LNG-20 IUS use was similar to continuation of the non-hormonal IUDs and Norplant-2. Amenorrhoea was the main reason for the discontinuation for the LNG-20 IUS and women should be informed of this prior to starting this method.
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Affiliation(s)
- R French
- Department of STDs, The Mortimer Market Centre, University College London Medical School, off Capper Street, London, UK, WC1E 6AU.
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27
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Abstract
The intrinsic appeal of the convenience and effectiveness of the IUD has increased interest in these devices in the United States in recent years. Understanding the uniqueness of the Dalkon Shield experience and applying the lessons learned about appropriate candidate selection should continue to reduce any lingering liability concerns. One lawsuit has been filed against the copper IUD in the 12 years that it has been available in the United States. If legislation requiring insurance coverage for IUDs and other prescription contraceptive agents continues to be passed by more states, the use of IUDs will continue to grow. The introduction of new IUDs with different side-effect profiles will expand the number of US women who can and will be interested in using this method of birth control.
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Affiliation(s)
- A L Nelson
- Department of Obstetrics and Gynecology, University of California Los Angeles School of Medicine, USA.
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28
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French RS, Cowan FM, Mansour D, Higgins JP, Robinson A, Procter T, Morris S, Guillebaud J. Levonorgestrel-releasing (20 microgram/day) intrauterine systems (Mirena) compared with other methods of reversible contraceptives. BJOG 2000; 107:1218-25. [PMID: 11028571 DOI: 10.1111/j.1471-0528.2000.tb11610.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To assess the relative contraceptive effectiveness, tolerability and acceptability of the levonorgestrel-releasing (20 microg per day) intrauterine system (LNG-20) compared with reversible contraceptive methods in women of reproductive age. DESIGN A systematic review and meta-analysis of randomised controlled trials. IDENTIFICATION Studies were identified through seven databases, and by contacting investigators and organisations working in the contraceptive field. MAIN OUTCOME MEASURES Unplanned pregnancy and continuation of contraceptive method. RESULTS Five of the seven randomised controlled trials which met the inclusion criteria were included in the meta-analyses; four were comparisons of the LNG-20 intrauterine system with nonhormonal intrauterine devices. LNG-20 intrauterine systems were compared with intrauterine devices divided into two categories, those > 250 mm3 (Copper T 380 Ag and Copper T 380A intrauterine devices) and those < or = 250 mm3 (Nova-T, Copper T 220C and Copper 200 intrauterine devices). Pregnancy rates for the LNG-20 intrauterine system users were significantly less likely to become pregnant compared with users of intrauterine devices < or = 250 mm3, and significantly less likely to have an ectopic pregnancy. LNG-20 intrauterine system users were more likely to experience amenorrhoea and device expulsion than women using intrauterine devices > 250 mm3. LNG-20 intrauterine system users were significantly more likely than all the intrauterine device users to discontinue because of hormonal side effects and amenorrhoea. When the LNG-20 intrauterine system was compared with Norplant-2, the LNG-20 users were significantly more likely to experience oligo-amenorrhoea, but significantly less likely to experience prolonged bleeding and spotting. CONCLUSIONS The effectiveness of the LNG-20 intrauterine system was similar to or better than other contraceptive methods with which it was compared. Amenorrhoea was the main reason for the discontinuation of the LNG-20 intrauterine system, usually unnecessarily, since this end-organ suppression of bleeding is benign, associated with normal oestrogen levels. Women choosing this method should be informed of potential amenorrhoea when having pre-contraceptive counselling and that absent bleeding may be viewed as a positive outcome.
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Affiliation(s)
- R S French
- Department of Sexually Transmitted Diseases, Royal Free and University College London Medical School, The Mortimer Market Centre, UK
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29
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Abstract
Concern about upper-genital-tract infection related to intrauterine devices (IUDs) limits their wider use. In this systematic review I summarise the evidence concerning IUD-associated infection and infertility. Choice of an inappropriate comparison group, overdiagnosis of salpingitis in IUD users, and inability to control for the confounding effects of sexual behaviour have exaggerated the apparent risk. Women with symptomless gonorrhoea or chlamydial infection having an IUD inserted have a higher risk of salpingitis than do uninfected women having an IUD inserted; however, the risk appears similar to that of infected women not having an IUD inserted. A cohort study of HIV-positive women using a copper IUD suggests that there is no significant increase in the risk of complications or viral shedding. Similarly, fair evidence indicates no important effect of IUD use on tubal infertility. Contemporary IUDs rival tubal sterilisation in efficacy and are much safer than previously thought.
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Affiliation(s)
- D A Grimes
- Family Health International, Research Triangle Park, North Carolina 27709, USA.
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30
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Bahamondes L, Lavín P, Ojeda G, Petta C, Diaz J, Maradiegue E, Monteiro I. Return of fertility after discontinuation of the once-a-month injectable contraceptive Cyclofem. Contraception 1997; 55:307-10. [PMID: 9220228 DOI: 10.1016/s0010-7824(97)00034-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The objective of this study was to evaluate the return of fertility in women who used Cyclofem as a contraceptive method during the introductory studies conducted in Brazil, Chile, Colombia, and Peru. From these four cohorts, 101 women were eligible for the study. Thirty-one were not included in the study either because they refused to be interviewed, had initiated another contraceptive method the month after discontinuation, or were unable to be contacted. A total of 70 women were included in the study. Our results showed that the return to fertility rate after the discontinuation of Cyclofem was 1.4 per 100 women at the end of the first month and reached 82.9 at one year. More than 50% were pregnant at 6 months. Fifty-one (94.4%) pregnancies ended in a live birth, two were spontaneous first trimester abortions, and one was a hydatidiform mole. Return of fertility was not related to the woman's age at the time of discontinuation, her weight, or the number of Cyclofem injections. In conclusion, fertility is restored by 1 month following Cyclofem discontinuation. Users and potential users should be counseled regarding the rapid return of fertility after discontinuing this method of contraception.
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Affiliation(s)
- L Bahamondes
- Departamento de Tocoginecologia, Universidade Estadual de Campinas, Brasil
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31
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Coleman M, McCowan L, Farquhar C. The levonorgestrel-releasing intrauterine device: a wider role than contraception. Aust N Z J Obstet Gynaecol 1997; 37:195-201. [PMID: 9222467 DOI: 10.1111/j.1479-828x.1997.tb02253.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The Levonorgestrel-releasing intrauterine device (LNG IUD) provides excellent contraception; it may reduce the rate of pelvic inflammatory disease (PID) and ectopic pregnancy compared to other 'modern' copper releasing IUDs; it can safely be used in the puerperium for breast-feeding mothers, and it significantly reduces menstrual blood loss and pain. While it was developed primarily as a contraceptive, its potential role in managing heavy and painful menstruation and the symptoms of the climacteric may eventually be just as important. Amongst developed countries New Zealand and Australia have some of the highest hysterectomy rates. By the age of 50 years 1 in 4 women in New Zealand and 1 in 5 women in Australia will have had a hysterectomy (A,B). In New Zealand 90% of these are performed for heavy menstrual bleeding and fibroids (A). The LNG IUD has been shown to be effective treatment for both these conditions and its introduction to New Zealand and Australia would offer women an additional choice beyond surgery.
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Affiliation(s)
- M Coleman
- Department of Obstetrics and Gynaecology, National Women's Hospital, Auckland, New Zealand
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32
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Abstract
Today's IUDs are an extremely safe and effective method of contraception. The progesterone-containing system is associated with diminished menstrual blood loss; however, it must be removed and reinserted annually. The copper-containing IUD is effective for up to 10 years, and is protective against ectopic pregnancy. When used for at least 18 months, the copper IUD is the most cost-effective of all contraceptive methods available in the U.S. (37). There are low rates of adverse events associated with IUD use, with no systemic metabolic effects. There is a rapid return to previous fertility, comparable to other contraceptive methods, including oral contraceptives. In addition, in the event that a woman does become pregnant when using an IUD, the IUD does not increase the risk of congenital abnormalities. Finally, when inserted into appropriate candidates, there is a low risk of pelvic inflammatory disease.
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Affiliation(s)
- S Pasquale
- Department of Ob/Gyn and Reproductive Sciences, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, New Brunswick 08901-1977, USA
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33
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Abstract
Modern intrauterine devices (IUDs) provide effective, safe and long-term contraception and could be recommended to most women. The mechanism of action of an IUD is still not fully understood, but most recent research suggests that copper-IUDs as well as hormone-releasing intrauterine systems (IUSs) prevent conception. In women in mutually monogamous relationships the risk of PID is low and related to the insertion procedure. IUD/IUS use should be discouraged if there is a suspicion of increased risk of sexually transmitted disease. The risk of ectopic pregnancy is extremely low if modern, highly effective IUDs/IUSs are used. Copper-IUDs increase menstrual blood loss by around 50%, whereas hormone-releasing IUSs substantially reduce menstrual blood loss. Careful patient selection and counselling are the most important tools in order to provide acceptable and safe IUD use.
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Affiliation(s)
- V Odlind
- Department of Obstetrics & Gynecology, University of Uppsala, Sweden
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34
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Chi IC, Farr G. The non-contraceptive effects of the levonorgestrel-releasing intrauterine device. ADVANCES IN CONTRACEPTION : THE OFFICIAL JOURNAL OF THE SOCIETY FOR THE ADVANCEMENT OF CONTRACEPTION 1994; 10:271-85. [PMID: 7740994 DOI: 10.1007/bf01984125] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Clinical trials have consistently shown that the IUD that releases 20 micrograms levonorgestrel daily (LNG-IUD-20) has a contraceptive efficacy comparable to, if not surpassing, the Copper T380 and the Multiload Copper-375 IUDs. The focus of this review is the device's non-contraceptive effects--the beneficial ones, such as reduction of menorrhagia, a therapeutic effect on dysmenorrhea, and prevention of ectopic pregnancy, as well as the deleterious ones, such as amenorrhea, spotting and irregular bleeding, hormonal side-effects, and functional ovarian cysts. Also discussed are the possibility of a preventive effect on pelvic inflammatory disease, the effects of the IUD on postpartum/lactating women, fertility return after removal and other safety issues. In general, the LNG-IUD-20's non-contraceptive benefits are substantive, carry important medical and public health implications, and far outweigh the device's deleterious effects, which are either medically mild or transient in nature, and can usually be managed satisfactorily by counseling. A better understanding of these effects, both beneficial and deleterious, of this hormone-releasing IUD should lead to more effective patient counseling, which, in turn, should improve user quality of life, minimize unnecessary removals, and maximize continuation of use.
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Affiliation(s)
- I C Chi
- Family Health International, Research Triangle Park, Durham 27709, USA
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35
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36
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Abstract
Many studies published on intrauterine devices (IUDs) during the last six years have consistently reported findings in favor of IUD use. Notable among these findings are: IUDs are not abortifacients; newly developed IUDs are highly effective and the efficacy is long-lasting; IUDs can be safely used by most lactating women, with lower removal rates attributable to bleeding and/or pain; and immediate postplacental IUD insertion reduces the risk of expulsion usually associated with postpartum insertion. Most importantly, in apparent contrast to results often reported in the late 1960s through the early 1980s, recent findings show that IUDs per se, especially the medicated ones, are not associated with an increased risk of pelvic inflammatory disease (PID), nor are they associated with an increased risk of ectopic pregnancy or subsequent infertility. There are still issues concerning IUD use that are controversial in spite of numerous studies. Should some of the contraindications currently listed for IUD use be modified according to the newer findings? Is the risk of uterine perforation increased when the IUD is inserted in lactating women? Do IUD tails increase the risk of PID? Does oral use of antibiotics at IUD insertion help prevent postinsertion PID? There are also issues that have not been sufficiently addressed and more information from empirical studies is needed. These include: the effect of the insertor's skill on IUD performance; IUD use in nulliparous as well as in older women; the relationship between IUD use and chlamydia infection; and long-term IUD use and safety, including actinomycosis, etc. Answers are also needed by administrators facing difficult programmatic decisions. For instance, should programs involving massive IUD removal be implemented as many IUD-wearing women are approaching or passing menopause? Similarly, are large programs to remove less-effective devices and replace them with newer and more effective IUDs advisable? This article reviews the state-of-the-art findings from recent IUD studies on the above issues.
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Affiliation(s)
- I Chi
- Family Health International, Research Triangle Park, North Carolina 27709
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37
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Chi IC. The TCu-380A (AG), MLCu375, and Nova-T IUDs and the IUD daily releasing 20 micrograms levonorgestrel--four pillars of IUD contraception for the nineties and beyond? Contraception 1993; 47:325-47. [PMID: 8508663 DOI: 10.1016/0010-7824(93)90031-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
With recent studies repeatedly showing results clearing the IUDs from their formerly suspected role in causing pelvic inflammatory disease (PID), very likely IUD use will further increase worldwide. While most previous IUDs have been withdrawn from the US market during the 1980s, newer and more effective IUDs have subsequently been developed; and some, marketed. Four of these devices will probably become the pillars for future IUD contraception worldwide. This review evaluates the relative performance and safety of these four devices. Consistent findings have proven the Copper-T 380A (Ag) and the Multiload-375 (MLCu375) IUDs to be safe with high and long-lasting efficacy. The Nova-T IUD showed favorable results in some studies, but showed deteriorated efficacy after three years of use in others; more studies are needed. Studies show that the IUD that daily releases 20 micrograms levonorgestrel (LNG-20) is associated with the highest efficacy in preventing accidental pregnancy among the four devices, but it has a uniquely high medical removal rate because of amenorrhea. This steroid-releasing device could be a high-performance IUD if this type of medical removal can be reduced through patient counseling devised according to local cultural background.
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Affiliation(s)
- I C Chi
- Family Health International, Research Triangle Park, North Carolina 27709
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38
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Edelman DA, Porter CW. The new intrauterine contraceptive devices: safe and effective. ADVANCES IN CONTRACEPTION : THE OFFICIAL JOURNAL OF THE SOCIETY FOR THE ADVANCEMENT OF CONTRACEPTION 1993; 9:83-91. [PMID: 8342459 DOI: 10.1007/bf02115905] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Reviews of the safety of intrauterine contraception usually are based on studies that do not reflect changes in clinical practice that have occurred over time, and that include many types of IUDs that are no longer used. Studies of insertions of the Multiload 375 and Copper T 380 performed since 1980, which more accurately reflect current clinical practice, show that these IUDs provide a high level of protection against pregnancy and are associated with low rates of complications. Current clinical opinion regarding the safety of IUDs needs to be reassessed in light of the positive safety record of these IUDs.
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Affiliation(s)
- D A Edelman
- Medical Research Consultants, Madison, NJ 07940
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39
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Andersson K, Batar I, Rybo G. Return to fertility after removal of a levonorgestrel-releasing intrauterine device and Nova-T. Contraception 1992; 46:575-84. [PMID: 1493717 DOI: 10.1016/0010-7824(92)90122-a] [Citation(s) in RCA: 84] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In a European randomized multicenter study, the efficacy and safety of an intrauterine contraceptive device releasing 20 microgram levonorgestrel/24 hours (LNG-IUD) have been evaluated and compared to the Nova-T. Because the LNG-IUD has a strongly suppressive effect on the endometrium and in some women affects ovarian function, the return to fertility after removal of the IUD was studied. Two-hundred-nine women (71 in the Nova-T and 138 in the LNG-IUD group), who had their IUDs removed because of planning pregnancy, were followed at least 24 months or until termination of pregnancy. For the Nova-T, the cumulative conception gross rate was 71.2/100 women after 12 months (79.7 after 24 months) and for the LNG-IUD 79.1 (86.6 after 24 months). The difference between the devices is not statistically significant, and in spite of the endometrial suppression during use of LNG-IUD, there is no delay of return to fertility and in both groups 96% of the pregnancies occurred during the first year after removal of the device. Eighty-four % of the pregnancies in the Nova-T group and eighty-six % in the LNG-IUD group ended in live births. The results suggest that the endometrium recovers quickly, normal ovulations are established and the fertility seems to be unaffected after use of an LNG-IUD.
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Affiliation(s)
- K Andersson
- Department of Obstetrics and Gynecology, East Hospital, University of Göteborg, Sweden
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40
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Sivin I, Stern J, Diaz S, Pavéz M, Alvarez F, Brache V, Mishell DR, Lacarra M, McCarthy T, Holma P. Rates and outcomes of planned pregnancy after use of Norplant capsules, Norplant II rods, or levonorgestrel-releasing or copper TCu 380Ag intrauterine contraceptive devices. Am J Obstet Gynecol 1992; 166:1208-13. [PMID: 1566771 DOI: 10.1016/s0002-9378(11)90607-3] [Citation(s) in RCA: 62] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVES The objectives were to measure rates of planned pregnancy and factors affecting these rates after use of very-long-acting contraceptive methods (Norplant or Norplant II implants, a levonorgestrel-releasing intrauterine contraceptive device, or the copper T (model TCu 380Ag) intrauterine contraceptive device. STUDY DESIGN The design was a concurrent, multicenter prospective study of 372 women who stopped contraception for planned pregnancy. Analysis was by life-table, log-rank, and standard chi 2 methods. RESULTS Pregnancy rates 12 and 24 months after cessation of contraceptive use were 82 and 89 per 100, respectively. Age at removal and family planning intentions at initiation of contraception were both significantly correlated with pregnancy rates (p less than 0.05), but former contraceptive regimen and duration of contraceptive use were not. Pregnancy outcomes did not deviate from normal limits and did not differ by contraceptive formerly used. CONCLUSION Contraceptive implants releasing 30 micrograms/day of levonorgestrel or intrauterine contraceptive devices releasing 20 micrograms/day of levonorgestrel or having copper surface areas of 380 mm2 are associated with normal fertility after use for women seeking pregnancy at termination. Durations of use do not affect pregnancy rates.
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Affiliation(s)
- I Sivin
- Center for Biomedical Research, Population Council, New York, NY 10017
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41
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Chi IC. An evaluation of the levonorgestrel-releasing IUD: its advantages and disadvantages when compared to the copper-releasing IUDs. Contraception 1991; 44:573-88. [PMID: 1773615 DOI: 10.1016/0010-7824(91)90078-t] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The levonorgestrel-releasing IUD (LNG-IUD-20), providing a daily dose of 20 ug, has recently been approved for marketing in Finland. The IUD's high efficacy in preventing accidental pregnancy and other numerous positive features make it a promising contraceptive device for worldwide use, just like the currently available T-shaped copper-releasing (TCu) IUDs. This paper reviews published reports comparing the LNG-IUD-20 and the currently used TCu IUDs. The merits and disadvantages of the steroid-releasing IUD are evaluated in terms of its performance and other special features relative to the TCu IUDs. Also, a number of future studies with medical and programmatic importance are proposed. A broader understanding about these two IUD families will facilitate their use in a complementary way for family planning programs.
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Affiliation(s)
- I C Chi
- Family Health International, Research Triangle Park, North Carolina 27709
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42
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Sivin I, Stern J, Coutinho E, Mattos CE, el Mahgoub S, Diaz S, Pavez M, Alvarez F, Brache V, Thevenin F. Prolonged intrauterine contraception: a seven-year randomized study of the levonorgestrel 20 mcg/day (LNg 20) and the Copper T380 Ag IUDS. Contraception 1991; 44:473-80. [PMID: 1797462 DOI: 10.1016/0010-7824(91)90149-a] [Citation(s) in RCA: 181] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A levonorgestrel-releasing IUD and the Copper T 380Ag IUD were in randomized comparison for seven years in five clinics. In two other clinics the randomized study was truncated at five years, but use of the Copper T continued. No pregnancies occurred to users of either device in years 6 and 7. Cumulative pregnancy rates were 1.1 per 100 at seven years for the steroid-releasing and 1.4 per 100 for the copper-releasing IUDs. Cumulative rates of PID did not differ between devices. Infection rates appeared to be lowest during the sixth and seventh years of the study. Termination attributable to amenorrhea was the principal contributor to differences in cumulative continuation rates between devices. At the five clinics that carried the comparative study to seven years, cumulative continuation rates were 24.9 per 100 for LNg20 IUD users and 29.4 per 100 for TCu 380Ag users. Women who used either method for periods of five to seven years experienced, on average, marked to mild increases in hemoglobin as compared with levels at admission. The Copper T380 family and the LNg20 IUDs represent the most effective reversible contraceptive methods yet studied in long-term randomized trials.
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Affiliation(s)
- I Sivin
- Center for Biomedical Research, Population Council, New York, NY 10021
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43
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Affiliation(s)
- T Luukkainen
- Department of Medical Chemistry, University of Helsinki, Finland
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44
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Sivin I, el Mahgoub S, McCarthy T, Mishell DR, Shoupe D, Alvarez F, Brache V, Jimenez E, Diaz J, Faundes A. Long-term contraception with the levonorgestrel 20 mcg/day (LNg 20) and the copper T 380Ag intrauterine devices: a five-year randomized study. Contraception 1990; 42:361-78. [PMID: 2124179 DOI: 10.1016/0010-7824(90)90046-x] [Citation(s) in RCA: 136] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An intrauterine device, releasing approximately 20 micrograms/day of levonorgestrel (LNg 20), used by 1124 women, was studied in a randomized trial of five years duration in comparison with the Copper T, model TCu 380Agm in 1121 women. At five years, the gross cumulative pregnancy rate of 1.1 +/- 0.5 per 100 among users of the LNg 20 devices was not significantly different from the rate of 1.4 +/- 0.4 per 100 experienced by users of the Copper T 380Ag. The steroid-releasing IUD had significantly higher termination rates for expulsion and amenorrhea, a significantly lower termination rate for other menstrual problems and pain, and a lower continuation rate. The five-year continuation rate among women using the TCu 380Ag was 40.6 per 100 as compared with that of 33.0 per 100 among women randomized to the LNg 20 device (P less than .001). Terminations attributed to amenorrhea with the LNg device primarily account for differences in continuation. These two intrauterine devices are the most effective long-term, reversible IUDs yet reported in the literature. No other contraceptive methods have exhibited such low long-term pregnancy rates in randomized comparative trials.
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Affiliation(s)
- I Sivin
- Center for Biomedical Research, Population Council, New York, NY 10021
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45
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Soeprono R. Return to fertility after discontinuation of copper IUD use: a study of 55 pregnancies involving Multiload Cu-250 users among private patients in Indonesia. ADVANCES IN CONTRACEPTION : THE OFFICIAL JOURNAL OF THE SOCIETY FOR THE ADVANCEMENT OF CONTRACEPTION 1988; 4:95-107. [PMID: 3213675 DOI: 10.1007/bf01849510] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Return to fertility after discontinuation of use of the Multiload Cu-250 intrauterine device was found to be excellent. This was the conclusion of a seven-year study of 55 pregnancies involving 53 MLCu250 users who had their devices removed because they wanted another child. Average age was 25.02 years and average parity 1.25. Length of IUD use ranged between 1.00 and 66.42 months, averaging 27.28 months. Interval between time of removal and first day of the last menstrual period (REM-LMP) prior to conception ranged from -0.51 to 49.03 months, with an average of 5.90 months. In four cases removal was not followed by any further periods. Thirty-five (63.64%) pregnancies occurred within six months and seven (12.72%) between six and twelve months after removal. Of the 55 conceptions, 46 (83.63%) took place within one year and a total of 52 (94.54%) within two years after IUD discontinuation. The length of IUD use appeared not to affect negatively either the return to fertility or the outcome of pregnancy and offspring. In the 14 cases involving extended use of the MLCu250 beyond three years, the average REM-LMP interval was 4.15 months. Outcome of pregnancy and offspring was generally good. Except for two spontaneous abortions, one premature and two post-mature births, one case of atonic postpartum hemorrhage and one neonatal death due to respiratory distress involving a child with Down's syndrome, all other pregnancies progressed to term, with the birth weights of the newborns in 43 cases averaging 3387 grams. Of the 42 newborns with known gender, 26 (61.90%) were male and 16 (38.10%) were female. Whether this decidedly above-normal male to female ratio at birth of 162.50 (against a norm of 105-106) was a consequence of previous copper IUD use merits further study.
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Affiliation(s)
- R Soeprono
- Department of Obstetrics and Gynecology, Faculty of Medicine, Gadjah Mada University, Yogyakarta, Indonesia
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46
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Luukkainen T, Allonen H, Haukkamaa M, Holma P, Pyörälä T, Terho J, Toivonen J, Batar I, Lampe L, Andersson K. Effective contraception with the levonorgestrel-releasing intrauterine device: 12-month report of a European multicenter study. Contraception 1987; 36:169-79. [PMID: 3123132 DOI: 10.1016/0010-7824(87)90012-6] [Citation(s) in RCA: 101] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The use-effectiveness of an intrauterine contraceptive device releasing 20 mcg of levonorgestrel daily (Lng-IUD), and of a Nova T copper-releasing IUD, were studied in a randomized, comparative multicenter trial. The Lng-IUD was inserted in 1821, and the Nova T in 937 women. The 12-month net pregnancy rate with the Lng-IUD (0.1 per hundred women) was significantly lower than that with the Nova T (0.9 per hundred). Removal rates for menstrual problems and/or pain were similar for the two methods (net rates 7.5 and 8.7, respectively). The 12-month continuation rates were 82.2 for the Nova T and 79.7 for the Lng-IUD. The reduction of the bleeding led to oligomenorrhea and amenorrhea in users of the Lng-IUD; the removal rate for these reasons was 1.4. The removal rate for hormonal side effects with the Lng-IUD was 2.4. Blood hemoglobin concentrations increased among users of the Lng-IUD and decreased among users of the Nova T. The results show that the Lng-IUD was a highly effective contraceptive method which reduced menstrual bleeding. It is a promising alternative for women desiring a highly effective method for long-term use.
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